Across
- 3. _____________ plastids are surrounded by two membranes.
- 5. an organism that can produce its own food
- 8. is a protist that is similar to fungi and can be seen in figure 20.2
- 9. green algae share many characteristics with land plants, but do not produce embryos or inhabit land
- 12. long propelling extensions from a eukaryotic cell that allow for movement
- 13. process by which cells move large molecules or particles into the cytoplasm from the outside
- 14. when partners in a symbiosis both benefit
- 15. small organisms that swim or float in water - often protists.
Down
- 1. an organism that must consume other organisms for energy
- 2. algae live within a coral reef and provide its color
- 4. Groups of protists whose members generally contain one or more plastids and are usually photosynthetic
- 6. move by extending part of their cytoplasm into a lobe of the cell and then flowing the rest of it over
- 7. developed when an ancient protist consumed an early bacteria
- 10. photosynthetic plankton
- 11. protists that lack plastids and behave similarly to a fungus
- 14. many groups of protists are not unicellular, instead they are______________.